has anyone here had any luck using superformance powder in their .243? I just finished shooting 50rds that i loaded, 5 each from min to max load with hornady 65 gr v-max's thru a brand new savage model 10 predator max and found the groups just ok, maybe a couple groups were 1" @ 100 yards

Hodgdon only likes to publish Superformance data, when the powder manages to exceed all other competitors' velocities with the same bullet.

Since Hodgdon doesn't provide the "most accurate load" notes, like most other data sources, there's no way of telling if that extra velocity is actually conducive to good accuracy (in their test platform).

Considering my own experience with .243 Win, and 4831-class powders.... I'd say you're seeing an unpredictable, incomplete burn, and wasting the powder. Step your burn rate up to something between say, H380 and IMR/H 3031, at a minimum. The 65 gr V-Max is way too light for a 4831-class powder.

I know that doesn't directly address accuracy, but you're better off with a powder that is more appropriate for the load. After you get a few rounds down range, the barrel should 'calm down' and "settle in". Only then, will you be able to see the rifle's true accuracy potential.

__________________"Such is the strange way that man works -- first he virtually destroys a species and then does everything in his power to restore it."

I was never able to empirically find the pressure knee. It just kept going until I ran out of
ability not to copper the barrel up. I DO NOT RECOMMEND THIS, and in fact dropped
the practical loadouts down into the 3,200fps-range

Sounds like you are shooting just the load I am wanting to shoot. I am going to buy a 243 and i wondered what gun would shoot the small bullets good. I am looking at a Sako A7 with 1 in 10" twist. Do you mind telling me what 243 you are shooting this load in and what twist rate. Thanks so much.

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